package com.sky.controller.admin;

import com.sky.dto.DishDTO;
import com.sky.dto.DishPageQueryDTO;
import com.sky.entity.Dish;
import com.sky.result.PageResult;
import com.sky.result.Result;
import com.sky.service.DishService;
import com.sky.vo.DishVO;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiOperation;
import lombok.extern.slf4j.Slf4j;
import org.apache.ibatis.annotations.Delete;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.web.bind.annotation.*;

import java.util.List;
import java.util.Set;

@RestController
@Api(tags = "菜品相关接口")
@Slf4j
@RequestMapping("/admin/dish")
public class DishController {

    @Autowired
    private DishService dishService;

    @Autowired
    private RedisTemplate redisTemplate;

    /**
     * 新增菜品
     * @return
     */
    @PostMapping
    @ApiOperation(value = "新增菜品")
    public Result save(@RequestBody DishDTO dishDTO){

        log.info("新增菜品：{}",dishDTO);
        dishService.saveWithFlavor(dishDTO);
        //清理缓存数据   构造redis 菜品数据key
        String key="dish_"+dishDTO.getCategoryId();
        redisTemplate.delete(key);
        return Result.success();
    }

    /**
     * 菜品分页查询
     * @param dishPageQueryDTO
     * @return
     */
    @RequestMapping("/page")
    @ApiOperation("菜品分页查询")
    public Result<PageResult> page(DishPageQueryDTO dishPageQueryDTO){
        log.info("菜品分页查询：{}",dishPageQueryDTO);
        PageResult pageResult=dishService.pageQuery(dishPageQueryDTO);
        return Result.success(pageResult);
    }

    /**
     * 菜品批量删除
     * @param ids
     * @return
     */
    @DeleteMapping
    @ApiOperation("单个删除或批量删除")
    public Result delete(@RequestParam List<Long> ids){
        log.info("菜品批量删除：{}",ids);
        dishService.deleteBatch(ids);

//        将所有的菜品缓存数据清除掉。
        clearCache("dish_*");
        return Result.success();
    }

    /**
     * 根据id查询菜品--修改操作数据回显
     * @param id
     * @return
     */
    @GetMapping("/{id}")
    @ApiOperation("根据id查询菜品")
    public Result<DishVO> getById(@PathVariable("id") Long id){
        log.info("根据id查询菜品：{}",id);
        DishVO dishVO=dishService.getByIdWithFlavor(id);

        return Result.success(dishVO);
    }

    /**
     * 修改菜品
     * @param dishDTO
     * @return
     */
    @PutMapping
    @ApiOperation(value = "修改菜品")
    public Result update(@RequestBody DishDTO dishDTO){
        log.info("修改菜品：{}",dishDTO);
        dishService.updateWithFlavor(dishDTO);
//        将所有的菜品缓存数据清除掉。
        clearCache("dish_*");
        return Result.success();
    }

    @PostMapping("/status/{status}")
    @ApiOperation("根据id修改启售和禁售状态")
//
    public Result startOrStop(@PathVariable("status") Integer status,Long id){
        log.info("修改菜品启售禁售状态：{},{}",status,id);
        dishService.startOrStop(status,id);
//        将所有的菜品缓存数据清除掉。
        clearCache("dish_*");
        return Result.success();

    }

    /**
     * 根据分类id查询菜品
     * @param categoryId
     * @return
     */
    @GetMapping("/list")
    @ApiOperation("根据分类id查询菜品")
    public Result<List<Dish>> list(Long categoryId){
        log.info("根据分类id查询菜品：{}",categoryId);
        List<Dish> list=dishService.list(categoryId);
        return Result.success(list);
    }


    /**
     * 统一清理redis缓存的抽取方法
     * @param pattern
     */
    private void clearCache(String pattern){
//        获取到所有的key
    Set keys = redisTemplate.keys(pattern);
//          清除掉所有的key
    redisTemplate.delete(keys);
}

}
